Project Versions

The dialect is the system SQLAlchemy uses to communicate with various types of DBAPI implementations and databases.
The sections that follow contain reference documentation and notes specific to the usage of each backend, as well as notes
for the various DBAPIs.

Changed in version 0.8: As of SQLAlchemy 0.8, several dialects have been moved to external
projects, and dialects for new databases will also be published
as external projects. The rationale here is to keep the base
SQLAlchemy install and test suite from growing inordinately large.

The “classic” dialects such as SQLite, MySQL, Postgresql, Oracle,
SQL Server, and Firebird will remain in the Core for the time being.

Dialects in the “attic” are those that were contributed for SQLAlchemy long ago
but have received little attention or demand since then, and are now moved out to
their own repositories in at best a semi-working state.
Community members interested in these dialects should feel free to pick up on
their current codebase and fork off into working libraries.